GD 154: White dwarf with multi-and monoperiodic pulsation

M. Paparó, Zs Bognár

Research output: Conference contribution

Abstract

We present the white dwarf GD 154 as an example where either monoperiodic or multiperiodic pulsation were found at different epochs. The mono-multi-monoperiodic stage seems to alternate. Many questions have been raised. Is this behaviour connected to the evolution of DAV stars? How often does it happen? Is there any regularity in this change of the pulsational behaviour or is it irregular?

Original languageEnglish
Title of host publication40th Liege International Astrophysical Colloquium. Ageing Low Mass Stars
Subtitle of host publicationFrom Red Giants to White Dwarfs, LIAC 2012
DOIs
Publication statusPublished - ápr. 5 2013
Event40th Liege International Astrophysical Colloquium. Ageing Low Mass Stars: From Red Giants to White Dwarfs, LIAC 2012 - Liege, Belgium
Duration: júl. 9 2012júl. 13 2012

Publication series

NameEPJ Web of Conferences
Volume43
ISSN (Print)2101-6275
ISSN (Electronic)2100-014X

Other

Other40th Liege International Astrophysical Colloquium. Ageing Low Mass Stars: From Red Giants to White Dwarfs, LIAC 2012
CountryBelgium
CityLiege
Period7/9/127/13/12

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Paparó, M., & Bognár, Z. (2013). GD 154: White dwarf with multi-and monoperiodic pulsation. In 40th Liege International Astrophysical Colloquium. Ageing Low Mass Stars: From Red Giants to White Dwarfs, LIAC 2012 [05013] (EPJ Web of Conferences; Vol. 43). https://doi.org/10.1051/epjconf/20134305013